A drop of oil is placed on the surface of water. Which of the following statements is correct

A drop of oil is placed on the surface of water. Which of the following statement is correct.

Why does oil spread over the surface of water?

Which of the following statements regarding water is correct?

A drop of water breakes into two droplets of equal size. In this proces, which of the following statements is correct?

A piece of ice at 0^(@)C is dropped into water at 32^(@)F . Which of the following statements is correct?